Hi Jason, for the GPIO pinout, the best starting point right now would be the description in the MPM code: https://github.com/EttusResearch/uhd/blob/master/mpm/python/usrp_mpm/periph_manager/x4xx_periphs.py Essentially, we've connected the 12 I/O lines that the regular HDMI pinout also defines as signals. I/O voltages can be set per connector as well (1.8V/2.5V/3.3V). One thing to keep in mind for the pinout: I/O direction setting is slow, so a fast protocol needs to have fixed I/O directions per pin. If you're interested in using the HDMI voltage supply output, we've hooked up 3.3V, ~500mA to the power pin of HDMI.
In terms of SW support for UHD to use the GPIOs, we're working on getting the support in - no firm timelines yet unfortunately. Another option for peripheral circuit boards may be to use the USB-C connection in the back - depends on your application requirements of course. Hope this helps Jan From: jason pro <[email protected]> Sent: Sonntag, 10. Oktober 2021 19:27 To: [email protected] Subject: [EXTERNAL] [USRP-users] pin definitions of the two HDMI interfaces of x410 Hi dear Engineers of Ettus Research, We plan to design a peripheral circuit board controlled by GPIO of x410. Now I would like to know the pin definitions of the two HDMI interfaces of x410. could you share relevant information? Best regards, Jason National Instruments Dresden GmbH; Gesch?ftsf?hrer (Managing Director): Kevin Schultz; Sitz (Registered Office): Dresden; HRB (Commercial Register No.): 22081; Registergericht (Registration Court): Dresden This email and any attachments are intended only for the person to whom this email is addressed and may contain confidential and/or privileged information. If you received this email in error, please do not disclose the contents to anyone, but notify the sender by return email and delete this email (and any attachments) from your system.
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